EFEOPfiAK rOEMS OF THE CIEOLANIIS'^. 363 



other good characters. When, in 1890, 1 established this species 

 as E. elegantula, I wrote that until further evidence was pro- 

 cured I thought it better not to regard my species as identical 

 with I]. Grimaldii, Dollf., from the Azores ; the latter form being 

 very imperfectly characterized, and the flagellum of its antennulae 

 described as one-jointed. The examination of typical specimens 

 of E. Grimaldii, Dollf., kindly forwarded me by Mr. Dollfus, 

 showed that this species is identical with mine ; the name given 

 by me must therefore be cancelled. 



3. EuETDiCE TEUNCATA, Norm. (1868). (PI. 34. figs. 2fl-2 l.) 



Male and female. 

 1868. Cirolana trnncata, A. M. Norman, Ann. Mag. Nat. Hist. ser. 4, 



vol. ii. p. 421, pi. xxiii. figs. 12-15 (female). 

 1890. Eurydice truticata, H. .1. Hansen, Cirolanidse, &c. p. 375. [Without 



description, but giving occurrences and the literature concerned.] 

 1895. Eurydice trimcata, H. J. Hansen, Isopoden, Cumaceen, und Stoma- 



poden der Plankton-Expedition, p. 13, pi. i. figs. 5-5 h (male). 



Process of clypeus small, seen vertically from below covering 

 a minute portion of the area between the mandibular palps. 



Antennulse. — Male : The antennulse reach behind the anterior 

 lateral angle of second thoracic segment. Peduncle considerably 

 thickened : third joint shorter than the second. Plagellum 

 rather robust at the base, otherwise slender, very elongate ; 

 first joint somewhat shorter than the combined length of the four 

 others, with a large number of moderately long sensory hairs ; 

 second joint much shorter than the third, which is a little longer 

 than the fourth ; the minute terminal joint with a few setae, one 

 of which is robust and exceedingly long, almost longer than the 

 whole flagellum. — Pemale (PI. 34. fig. 2 6) : The antennulae reach 

 to the anterior lateral angle of thorax. Peduncle moderately 

 slender; third joint considerably shorter than the second. Fla- 

 gellum slender ; first joint only slightly longer than the four 

 others together, with a moderate number of sensory hairs ; 

 second joint conspicuously shorter than third or fourth ; terminal 

 minute joint with some setas, the longest of which is slightly 

 longer than the three distal joints combined. 



Peduncle of antennae with the penultimate joint conspicuously 

 more than half as long as the terminal one. 



Epimera of second, third, and fourth thoracic segments scarcely 

 or not at all produced behind ; epimera of fifth segment produced 



